| 摘要 |
A voltage generator includes: a pumping voltage detecting section configured to detect a level of a pumping voltage in accordance with a reference voltage, that activates a pumping enable signal when the detected level of the pumping voltage is higher than a first voltage, while activating a power source voltage drive signal when the detected level of the pumping voltage is lower than the first voltage. A pumping section generates the pumping voltage through a pumping operation when the pumping enable signal is active. A power source voltage driving section generates the pumping voltage at a level of an external power source voltage when the power source voltage drive signal is active.
|
